Learn from your mistakes and your victories. Nevertheless, being focused about the yesterdays will never grant you beautiful tomorrows. We are all products of our current and past convictions, but do not become a quotient: divided amongst what is moral and just, and the evils of the world. Be the sum of what is right, and what is "you." Take that with you, this day forward, subtracting all other distractions, to make a change, starting with yourself.